TUE. BRIEF: Musicians Sue Apple • UMG Buys ZTT, Stiff Records • Pandora Overhauls Comcast App • More Posted by December 19, 2017December 19, 2017 Leave a comment on TUE. BRIEF: Musicians Sue Apple • UMG Buys ZTT, Stiff Records • Pandora Overhauls Comcast App • More TUESDAY 12.19.17 Music Business News From Around The Web Updated continuously under our More News tab